Abstract: In accordance with one embodiment, a power supply apparatus includes a movable terminal section configured to be attached on or detached from and electrically connected with a fixed terminal section corresponding to the attaching or detaching of a unit on or from a main body; a sliding section configured to support the movable terminal section and slide; a guide stud which has a positioning section inserted into the guide hole of the sliding section, a shaft section smaller in sectional area than the positioning section and a connection section for connecting the positioning section with the shaft section, configured to guide the sliding section; and an elastic section configured to press the sliding section towards a unit terminal section.

Abstract: In accordance with one embodiment, a power supply apparatus includes a movable terminal section configured to be attached on or detached from and electrically connected with a fixed terminal section corresponding to the attaching or detaching of a unit on or from a main body; a sliding section configured to support the movable terminal section and slide; a guide stud which has a positioning section inserted into the guide hole of the sliding section, a shaft section smaller in sectional area than the positioning section and a connection section for connecting the positioning section with the shaft section, configured to guide the sliding section; and an elastic section configured to press the sliding section towards a unit terminal section.

Abstract: To provide an image forming apparatus and a double-sided printing method for the image forming apparatus that can prevent occurrence of an image failure by providing a sheet retracting mechanism in a conveying path of an automatic double-sided printing device and preventing occurrence of temporary stop near a high-temperature fixing device during a double-sided printing operation.

Abstract: To provide an image forming apparatus and a double-sided printing method for the image forming apparatus that can prevent occurrence of an image failure by providing a sheet retracting mechanism in a conveying path of an automatic double-sided printing device and preventing occurrence of temporary stop near a high-temperature fixing device during a double-sided printing operation.

Abstract: A manual paper feeding apparatus comprises a tray for manual paper feeding, a paper feed roller to feed the paper fed manually from the tray, a separation roller which is pressed to contact the paper feed roller, rotated at the pressed contact position in the direction reverse to the paper feed roller, and separates the sheets of paper one by one, a power transmission device to transmit power to the paper feed roller and separation roller, and a reversing device which is provided in the power transmission device, and rotates the paper feed roller in the direction reverse to the paper feeding direction, based on that the paper fed between the paper feed roller and separation roller is pulled in the direction reverse to the manual feeding direction.

Abstract: A manual paper feeding apparatus comprises a tray for manual paper feeding, a paper feed roller to feed the paper fed manually from the tray, a separation roller which is pressed to contact the paper feed roller, rotated at the pressed contact position in the direction reverse to the paper feed roller, and separates the sheets of paper one by one, a power transmission device to transmit power to the paper feed roller and separation roller, and a reversing device which is provided in the power transmission device, and rotates the paper feed roller in the direction reverse to the paper feeding direction, based on that the paper fed between the paper feed roller and separation roller is pulled in the direction reverse to the manual feeding direction.

Abstract: A manual paper feeding apparatus comprises a tray for manual paper feeding, a paper feed roller to feed the paper fed manually from the tray, a separation roller which is pressed to contact the paper feed roller, rotated at the pressed contact position in the direction reverse to the paper feed roller, and separates the sheets of paper one by one, a power transmission device to transmit power to the paper feed roller and separation roller, and a reversing device which is provided in the power transmission device, and rotates the paper feed roller in the direction reverse to the paper feeding direction, based on that the paper fed between the paper feed roller and separation roller is pulled in the direction reverse to the manual feeding direction.

Abstract: A manual paper feeding apparatus comprises a tray for manual paper feeding, a paper feed roller to feed the paper fed manually from the tray, a separation roller which is pressed to contact the paper feed roller, rotated at the pressed contact position in the direction reverse to the paper feed roller, and separates the sheets of paper one by one, a power transmission device to transmit power to the paper feed roller and separation roller, and a reversing device which is provided in the power transmission device, and rotates the paper feed roller in the direction reverse to the paper feeding direction, based on that the paper fed between the paper feed roller and separation roller is pulled in the direction reverse to the manual feeding direction.